Alcibiades Antonio Acosta Agudelo (June 14, 1965 in Soledad, Atlántico, Colombia) better known by his stage name Checo Acosta, is a Colombian folk singer. Biography Acosta is the son of the singer Al
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d5b484c08ceaff96c9c98cb03a51a001cd0eb6305c9b0c04615d0bcb979487. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/653957b3-89a2-4899-b19c-a22d1b0daa97.json and https://artists.proofprofile.net/proofs/artist/653957b3-89a2-4899-b19c-a22d1b0daa97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9c8c4207ed7f37b3ff206942f6990e3d603caa67dd0c60b7aa1155141c592d. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC18941502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bbc50533eae3e7c60a681e0a49612d289560a921ca1ced09b71f789d3e1ed9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC12546004.
Checumbias: Santo Parrandero / La Pollera Colorá / El Africano / La Estera / La Puya Loca - Carnaval
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bb325ab95bddcd6c0f3fff69df78eabe0ce4e1e11e80e14c82399e31a0705d. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC12673012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13eee8ebd73b655e26db869bd611b88aac53bcda3cb970a471d227d72a708d4. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:45:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC19727114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e64f849b2764e7bb50a1143f1bf25740bedcc03aca86d309ffe7fdabd99973. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:11:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC10028038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b151a0e1418d0843b63b9ca84a47f017da345f5fd41b32170cc8832cb4d5fed. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC10075010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7b882fa9d416ef7b3cf29600d1e5c1f974a1abf38fd5530423c2a533e422803. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC13114006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88835309aa85df9c9211cea4491949e7eeb6c64eafccebad0cc30c4df459e14. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COSO10801159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ecccce47d7ce8b77bd7b4966438317e9adc649765efaf583ea33ca43bdaae7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC11131297.
Checarnaval: La Rama del Tamarindo / La Danza del Garabato / De Que Me Disfrazaré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3068ceb940ea13b79861455edd815bed0a38ae8ef03b825cd112b75e7c87ff12. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c6327787add3a18a6b2561a2c4e8bafe4e98c8897ebf3455b4f29c34f1cc61. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84eca234aabd3d1a30d3161338f216a8ae16a90cd466cc24a94c2040ba062b7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430125.
Chetropical: La Suavecita / Aguita e' Coco / Mi Tamborera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8535914c2f82815cc9fc72d371f26e232cb2d0054a5258b6aac67f561bce9ca1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1587a78576696b96c2344897ea1b80778e62c6f81074fa1c9937d939cecf14fb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011329428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6bf28779471a06fb5c0adfbd7df3acb93b94ad22b9c393bebbc0d40c35b995. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011329733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b9e7037ae5673e219b1adcf6b8ec4776209cfe6049624f918162068a8cda2c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430384.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936f49922a0679998bc24aa44b96d3a516f2ff7f263e190a5fd7927acc7db1c6. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd84791f3cbe023a86e4e316e7766173d78d052d31b3cced002f953c7b3bbf2. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011329736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe1af88984320953b0f49b10ea1bbb07dad1dd58760258b06c587e216037c51. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bded18d2d37bc02268a1ef2dade769a1451d3edf049f29f4a0c6f068af261a4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f1671b4c6571c3a79888b0faf83f7cf20050dd40a761a3c0ac1f7d50d6fa85. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011430387.
Checumbias: Santo Parrandero / La Pollera Colorá / El Africano / La Estera / La Puya Loca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bb325ab95bddcd6c0f3fff69df78eabe0ce4e1e11e80e14c82399e31a0705d. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC12673012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c3fc7386fef8a76c2d448086ac2c43865a25b4396e00678c6a7fd87bd7c49f. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COFC11720716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f8c85fb3ad0b4f2bde7f69cfd0e05f0a578ad8e3c7c73016e484af2bb5f213. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011832698.
El Rey del Carnaval (El Garabato / Negros Macheteros / Prende la Vela)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e16653a49a6218c23652a70e2fc773e19b1458204d72918c69dd58da969b99. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011833013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7279260ee99bd87977d26b8e9fa1e4f1f96b221924752247c326f733d049d9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COC011933453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d64464474690aa2110eff6d4e0ad5380b950973aa8a4e4acd31b96b77676c23. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072278995.
CHENAVIDEÑO: Brisas de Diciembre / La Inmaculada / Como Se Acaban Las Velas
EL CACIQUE EN CARNAVAL: El Hombre de Mama / Parranda, Ron y Mujé / Caracoles de Colores / La Chambaculera
Rama De Tamarindo (Checarnaval - 10 Años)
Rama de Tamarindo (Canto a mi Che Selección)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2d983c5f596a08d144b7b1a468af57ef97d1f061fb40d2b66edddf03cecfb2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0R2462586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f96dda6eaf42b90ed7d35b8fa9a4f35ba5a6df6ec99de4642430c1d2e0ca06. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S2547888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46df2e267ba12bdc80d0795003c1a52e92545e7f399c778e6f9ae42da8d436d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0H2300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4cb9e0f92d49e3600787cbe77c11dc3f0402b131ad53d80ffbb6cff81a74cb. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:49:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052599948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e8de8d9019a6f8cd9edbfa03f167ab0587fd66570c034d2fa508d67faa0947. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:28:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062565973.
La Cancion del Carnaval (feat. Silvestre Dangond) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef62e3a11f673e33302994b7f2eac5ddb3dad43e48378b7e5d6c1f627b12913. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/COSO10801199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b0e83c0ac2defadfea0a44bd563b9f475bc60a5c240f30bf2f0004c1feb416. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G2036263.